Life on Earth

Question 1

What is a habitat?

Answer 1

A habitat is where an organism lives

Question 2

What is an ecosystem?

Answer 2

All living things and non-living things in an area

Question 3

What is a biome?

Answer 3

A giant ecosystem characterised by its climate and vegetation

Question 4

What is a community?

Answer 4

All populations of an organism in an ecosystem

Question 5

What is a population?

Answer 5

All members of one organism in an ecosystem

Question 6

What is a niche?

Answer 6

The role of one species in an ecosystem

Question 7

What is a carnivore?

Answer 7

A carnivore only eats other consumers (meat)

Question 8

What is an omnivore?

Answer 8

An omnivore eats consumers and plants (meat and plants)

Question 9

What is a herbivore?

Answer 9

A herbivore only eats producers (plants)

Question 10

What is a consumer?

Answer 10

A consumer cant make its own food

Question 11

What is a producer?

Answer 11

A producer produces its own food

Question 12

What is biodiversity?

Answer 12

Biodiversity is the huge range of organisms living in an ecosystem

Question 12

What is Biological keys?

Answer 12

Biological keys are used to identify organisms

Question 13

What are Biotic factors?

Answer 13

Living factors that affect an ecosystem
e.g: disease, predators and food availability

Question 14

What are Abiotic factors?

Answer 14

Non-living factors that affect an ecosystem
e.g: temperature, light intensity and wind speed

Question 15

What is Habituation?

Answer 15

Animals learn that a particular stimuli will not cause it harm so they stop responding. This is beneficial as they waste energy when responding

Question 15

What is an Innate behaviour?

Answer 15

Instinctive behaviour that animals can do from birth

Question 16

What is Learned behaviour?

Answer 16

Behaviour that is taught or gained through experience or play

Question 17

What is a Structural adaptation?

Answer 17

A body feature that helps animal or plant to survive

Question 18

What is a Physiological adaptation?

Answer 18

A body process that helps an animal or plant survive

Question 19

What is a Behavioural adaptation?

Answer 19

An animal or plant’s response to a stimuli

Question 20

What is population?

Answer 20

The total number of one species in an ecosystem
-Many factors affect the chances of survival for an individual in a population

Question 21

How do you measure temperature?

Answer 21

You measure it with a thermometer in *c

Question 22

How do you measure light intensity?

Answer 22

You measure it with a universal indicator
1-14

Question 23

How do you measure soil moisture?

Answer 23

You measure it with a moisture meter
dry- dry dry+
wet- wet wet+

Question 24

How do you measure the pH scale?

Answer 24

You measure it with a universal indicator
1-14

Question 25

Over-fishing
impact?
Solution?

Answer 25

Impact - Destruction of fish stocks/population
Solution - Encourage catching of unused species

Question 26

Deforestation
Impact?
Solution?

Answer 26

Impact - Lots of species and possible climatic disturbance
Solution - Protecting the remaining rain forest and re-plant native species

Question 27

Desertification
Impact?
Solution?

Answer 27

Impact - Soil erosion and the loss of fertile top soil
Solution - Rotate areas used to grow crops

Question 28

Overuse of chemicals in agriculture
Impact?
Solution?

Answer 28

Impact - Chemicals harming organisms in the ecosystem and the nutrients may pollute waterways
Solution - Encourage natural farming practices